/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2018-11-06     SummerGift   first version
 */

#include "board.h"

void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
      RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
      RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

      /** Configure the main internal regulator output voltage
      */
      __HAL_RCC_PWR_CLK_ENABLE();
      __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
      /** Initializes the CPU, AHB and APB busses clocks
      */
      RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE
                                  |RCC_OSCILLATORTYPE_LSE;
      RCC_OscInitStruct.HSEState = RCC_HSE_ON;
      RCC_OscInitStruct.LSEState = RCC_LSE_ON;
      RCC_OscInitStruct.LSIState = RCC_LSI_ON;
      RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
      RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
      RCC_OscInitStruct.PLL.PLLM = 4;
      RCC_OscInitStruct.PLL.PLLN = 168;
      RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
      RCC_OscInitStruct.PLL.PLLQ = 7;
      if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
      {
        Error_Handler();
      }
      /** Initializes the CPU, AHB and APB busses clocks
      */
      RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                                  |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
      RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
      RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
      RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
      RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;

      if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
      {
        Error_Handler();
      }
      PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;
      PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
      {
        Error_Handler();
      }


}
